Alert archive / Texas / Mesoscale Discussions in 2022

Mesoscale Discussion 2011

December 13, 2022Love County, Oklahoma; 12 counties in Texas

The Storm Prediction Center issued this mesoscale discussion at Dec 13, 2022, 6:00 AM CST for Love County, Oklahoma; 12 counties in Texas. It was in force for 90 min.

The area

The outline as issued.

The facts

Issued: Dec 13, 2022, 6:00 AM CST (12:00 UTC)
Expired: Dec 13, 2022, 7:30 AM CST
In force: 90 min
Issued by: the Storm Prediction Center
Concerning: Tornado watch 581

Counties Love County, OK, Cooke County, TX, Dallas County, TX, Denton County, TX, Erath County, TX, Hood County, TX, Jack County, TX, Johnson County, TX, Montague County, TX, Palo Pinto County, TX, Parker County, TX, Tarrant County, TX, Wise County, TX

The radar

The Dallas/Ft Worth radar (KFWS), 64 km from the middle of the area, began a volume at 12:01 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

The nearest sounding before it

Fort Worth, TX (KFWD), launched 12:00Z, 0.0 hours before the alert went out and 41 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 943 J/kg
Mixed-layer CIN: -10 J/kg
Mixed-layer LCL: 528 m above ground
0-6 km bulk shear: 66 kt
0-1 km storm-relative helicity: 405 m²/s²
0-3 km storm-relative helicity: 550 m²/s²
Significant tornado parameter: 3.1
Supercell composite: 10.8

Open this sounding in Storm Lab

The text

As transmitted.

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SPC that day

Everything else SPC issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Dec 12, 7:12 PM CST	Mesoscale Discussion	SPC	Beaver, Texas	3 hr
Dec 12, 8:25 PM CST	Tornado Watch	SPC	Beaver, Texas	4 hr
Dec 12, 9:10 PM CST	Mesoscale Discussion	SPC	Beckham, Custer, Dewey, Ellis, Greer, Harmon and 7 more	3 hr
Dec 12, 9:16 PM CST	Tornado Watch	SPC	Ellis, Harper, Woods, Woodward	5 hr
Dec 12, 9:54 PM CST	Tornado Watch	SPC	Alfalfa, Beckham, Blaine, Caddo, Comanche, Cotton and 13 more	6 hr
Dec 12, 11:24 PM CST	Mesoscale Discussion	SPC	Beckham, Custer, Dewey, Ellis, Greer, Harmon and 6 more	2 hr
Dec 13, 1:44 AM CST	Mesoscale Discussion	SPC	Alfalfa, Garfield, Grant, Kay, Kingfisher, Lincoln and 4 more	61 min
Dec 13, 3:07 AM CST	Mesoscale Discussion	SPC	Atoka, Bryan, Carter, Cleveland, Coal, Garvin and 12 more	113 min
Dec 13, 3:58 AM CST	Tornado Watch	SPC	Atoka, Bryan, Carter, Coal, Cotton, Hughes and 9 more	7 hr
Dec 13, 8:59 AM CST	Mesoscale Discussion	SPC	Bryan, Choctaw, McCurtain, Pushmataha	2 hr
Dec 13, 9:07 AM CST	Tornado Watch	SPC	Choctaw, McCurtain, Pushmataha	8 hr
Dec 13, 11:41 AM CST	Mesoscale Discussion	SPC	Anderson, Bowie, Camp, Cass, Cherokee, Delta and 25 more	2 hr
Dec 13, 1:33 PM CST	Mesoscale Discussion	SPC	Anderson, Angelina, Cass, Cherokee, Gregg, Harrison and 17 more	117 min
Dec 13, 2:12 PM CST	Mesoscale Discussion	SPC	Angelina, Cherokee, Gregg, Harrison, Houston, Marion and 6 more	63 min
Dec 13, 2:15 PM CST	Tornado Watch	SPC	Angelina, Jasper, Nacogdoches, Newton, Polk, Sabine and 4 more	8 hr
Dec 13, 3:51 PM CST	Mesoscale Discussion	SPC	Angelina, Harrison, Houston, Jasper, Madison, Nacogdoches and 9 more	84 min
Dec 13, 4:44 PM CST	Mesoscale Discussion	SPC	Sabine, San Augustine, Shelby	91 min

Nearby

Mesoscale Discussions in Texas, 2022 Mesoscale Discussions in Oklahoma, 2022 Every mesoscale discussion in 2022

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.